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GeneBe

21-45175897-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 3P and 3B. PM2PP2BP4_ModerateBS1_Supporting

The NM_001112.4(ADARB1):​c.196C>T​(p.Arg66Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000695 in 1,610,488 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000072 ( 0 hom. )

Consequence

ADARB1
NM_001112.4 missense

Scores

2
6
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.69
Variant links:
Genes affected
ADARB1 (HGNC:226): (adenosine deaminase RNA specific B1) This gene encodes the enzyme responsible for pre-mRNA editing of the glutamate receptor subunit B by site-specific deamination of adenosines. Studies in rat found that this enzyme acted on its own pre-mRNA molecules to convert an AA dinucleotide to an AI dinucleotide which resulted in a new splice site. Alternative splicing of this gene results in several transcript variants, some of which have been characterized by the presence or absence of an ALU cassette insert and a short or long C-terminal region. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, ADARB1
BP4
Computational evidence support a benign effect (MetaRNN=0.13229132).
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.000072 (105/1458222) while in subpopulation AMR AF= 0.000273 (12/43988). AF 95% confidence interval is 0.000157. There are 0 homozygotes in gnomad4_exome. There are 50 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADARB1NM_001112.4 linkuse as main transcriptc.196C>T p.Arg66Cys missense_variant 4/11 ENST00000348831.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADARB1ENST00000348831.9 linkuse as main transcriptc.196C>T p.Arg66Cys missense_variant 4/111 NM_001112.4 P1P78563-2

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152148
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000109
AC:
27
AN:
246664
Hom.:
0
AF XY:
0.0000975
AC XY:
13
AN XY:
133368
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.000357
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000333
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000108
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000720
AC:
105
AN:
1458222
Hom.:
0
Cov.:
31
AF XY:
0.0000689
AC XY:
50
AN XY:
725314
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.000273
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.0000747
Gnomad4 OTH exome
AF:
0.0000665
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152266
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Neurodevelopmental disorder with hypotonia, microcephaly, and seizures Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvitySep 15, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.18
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.35
T;.;.;.;.;T
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D;.
M_CAP
Benign
0.049
D
MetaRNN
Benign
0.13
T;T;T;T;T;T
MetaSVM
Benign
-0.70
T
MutationAssessor
Uncertain
2.6
M;M;M;.;.;M
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.63
T
Sift4G
Uncertain
0.0040
D;D;D;D;D;D
Polyphen
1.0
D;D;.;.;.;D
Vest4
0.75
MVP
0.14
ClinPred
0.36
T
GERP RS
5.2
Varity_R
0.24
gMVP
0.44

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs143795052; hg19: chr21-46595812; API